No holder of a Certificate of Approval, Brewery, Winery, or Wholesale licensee will provide any equipment pertaining to dispensing or storage of liquor except knobs on the dispensers which designate the brand on tap. After written notification to the Bureau, a Wholesale licensee may sell, give and install a keg tapping device, air hoses, beer hoses, air ducts and insulation for draft beer lines, including washers, clamps, faucets, air regulators, blowers and shanks. Towers, drain pans, refrigeration units and other devices not specifically allowed by this rule are prohibited. The servicing and repair of the draught equipment for the purposes of cleaning the beer lines is allowed without written notice. A record must be maintained by all licensees for all services and equipment provided or sold.
18- 553 C.M.R. ch. 104, § 2